Vibrating device



y 1949. J. A. MAS 2,468,991

VIBRATING DEVICE Filed Oct. 6, 1945 2 Sheets-Sheet 1 I INVENTOR. JOSE A. MAS

BY 71/ 7 /fm ATTORNEY Patented May 3, 1949 VIBRATING DEVICE J os A. Mas, Indianapolis, Ind, assignor, by mesne assignments, to Cornell poration, South Plainfleld,

of Delaware -Dubilier Electric Cor- N. J., a corporation Application October a, 1945, Serial No. 620,717 3 Claims. ,(Cl. zoo-e7) The present invention relates, in general, to vibrator devices and more particularly to vibrator devices adapted to interrupt electric current.

In general, the invention includes a pair of relatively stationary side contacts, between which is adapted to vibrate a center contact. The side contacts, as a rule, are mounted on supporting arms and disposed opposite to one another, and the center contact is mounted on a reed adapted to vibrate. The reed is driven through the medium of an electr'o-magnet, whose circuit is intermittently interrupted, so that the magnet, when energized, causes the reed to move in one direction, and when deenergized, permits the reed to move in the opposite direction.

Such devices have to be extremely accurately manufactured, and the parts accurately assembled. Heretofore, the arms carrying the side contacts have been assembled by securing the bottom ends thereof in a suitable stack, this stack comprlsing in general, insulating parts and compression members, the assembled stack with the side arms bein bolted together, preferably by the same bolt which secures the stack to the frame, on which is mounted the driving electromagnet.

It is one of the objects of my invention to provide an improved vibrator interrupter, by which the stack formation is completely eliminated.

Another object of my invention is to provide a means for supporting at least the side contacts in such a manner that the arms carrying the side contacts are accurately positioned and securely held in such position, without the necessity of making the adjustments after the arms have been mounted.

It is a further object of my invention to so mount the side arms carrying the side contacts and the driving magnet, that the parts are supported in their assembled position in extremely accurate relationship, thereby avoiding the necessity of adjusting any, but possibly one part, of the vibrator.

For the purpose of disclosing my invention, I

have illustrated certain embodiments thereof in the accompanying drawings, in which:

Fig. 1 is a side elevation of a vibrator interrupter constructed, inaccordance with my invention, the enclosin housing being .shown in section;

Fig. 2 is a transverse section on the line 2-2 of Fig. 1;

Fig. 3 is a longitudinal, sectional view of the magnet and side arm assembly;

Fig. 4 is a side elevation, partly in section, of a modified form of my invention;

Fig. 5 is a side elevation of the driving magnet and center reed assembly; and

Fig. 6 is a bottom plan of the molded insulating base and its associated parts.

In the embodiment of the invention illustrated in Figs. 1 to 3, the side arms I and 2, which may be formed of suitable resilient material and which carry the relatively stationary contacts 3 and l, mounted in a suitable base 5.

In this base is also mounted the driving magnet 8 having a pole piece I.

In the assembly of the parts, above described. the side arms land 2 and the magnetic coil 6, which has been previously wound on a pole piece I, are supported in suitable jigs, with the parts held in accurate relationship to one anothenand the base 5 consisting of a plastic material, molded about the parts in their assembled relation. The plastic material of which the base 5 is formed may be of any suitable plastic material, such for instance, as nylon or a certain preparation now -manufactured by the General Electric Company and identified by said company as Perma-fil. This plastic material is an insulating material so that the various parts supported therein are electrically insulated from one another. In the mounting of the parts in the base 5, the ends of the arms I and 2 project beyond the rear face of the base to provide tailpieces 8 and 9, to which are adapted to be attached suitable electric leads. The pole piece I is also adapted to extend beyond the rear face to provide a tailpiece ill, to which is adapted a suitable lead for connecting the same in the circuit. One terminal of the winding 6 is preferably connected to the tailpiece l0.

- The respective tailpieces are connected by the wire leads to plug terminals H mounted in a suitable insulating base M.

For supporting the center reed i3, which carries suitable resilient arms I4 and I5, in turn carrying the center reed contacts i6 and I1, I provide a preferably U-shaped frame, the base It of which lies adjacent the bottom of the plastic base 5, being secured to the tailpiece In of the magnet by suitable solder joint IS. The two side arms 20 of the frame extend parallel with the sides of the plastic base 5 lying in suitable grooves 2| in the side faces. The upper ends of these side arms 20 are brought together, as at 22, to provide two clamping plates 23, and between these clamping plates the center reed I3 is secured by a suitable screw 24. The lower end of the center reed l3 carries an armature 25 adapted to be influenced by the pole piece 1 of the driving magnet to cause the reed I! to vibrate.

The entire structure may be, if desired, mounted within a suitable enclosing casing 26, which may be formed of metal and which. at one end, is open to receive the insulating base l2.

Within this base is a suitable sponge rubber cup, which is mounted to absorb the vibrations set up by the vibrating interrupter and to deaden a hum or noise which may be occasioned thereby.

In the structure illustrated in Figs. 4, and 6, I provide a modification of the structure illustrated in Figs. 1, 2 and 3. In this structure, I provide a frame 28 which may be of stamped sheet metal or any other desirable construction, which frame is provided at one end with a cross piece 28 and at the other end with a cross piece 30. The vibrating reed 13, with its associated contacts, is riveted or bolted to the cross arm 29. The rear end or tailpiece in of the driving magnet, which it will be remembered, is an exten sion of the pole piece '1 is welded or otherwise secured to the cross piece 30. In the assembly of these parts, the pole piece 1 is accurately positioned relative to the end of the vibrating reed l3 and relative to the armature 15 carried thereon.

This structure, as a unit, is then assembled in a suitable supported jig or supported in any other desired manner in proper relation to the side arms i and 2. With all of the parts supported in their accurately positioned relationship to one another and firmly held, a plastic base 5 is molded about the parts. All of the parts are mounted in their accurate relationship, without the necessity of further adjustment and are ready to be used Without an enclosing or may be assembled within the enclosing casing 26. Preferably in this casing, I provide a vibration absorbing sock such as the sock 21 and a similar sock 28 surrounding the base 5'. The terminals of the electrical connections of the parts shown in the structure illustrated in Figs. 4, 5 and 6, is similar to that shown in the structure in Figs. 1, 2 and 3.

I claim as my invention:

1. In a vibrating device the combination with a frame, a vibrating reed secured at one end of said frame and having its free end projecting toward the opposite end of said frame, a molded insulating base having imbedded therein and supported thereby in predetermined spaced relation and extending on opposite sides of said reed a pair of resilient relatively stationary supporting arms carrying contacts adapted to face one another and a driving magnet having a pole piece unob structed by the molded insulating base, said base being supported at the end of the frame opposite the support for the reed having a portion thereof embracing a portion of the frame and so supported in the frame as to present the pole piece of the magnet toward the free end of said reed.

2. In a vibrating device in combination a frame comprising a pair of side members converging at one end, a vibrating reed clamped between the converging side members and having its free end extending toward the opposite end of said frame, said reed having contact members disposed on its opposite faces, a base member supported at the opposite end of said frame and comprising a onepiece insulating base having a portion thereof embracing the side members of the frame and having imbedded therein and supported thereby and in a predetermined spaced relation a pair of resilient relatively stationary supporting arms disposed on opposite sides of said vibrating reed, said arms carrying contacts for cooperation with the contacts of said reed and a driving magnet likewise imbedded in and supported by said molded base, said electromagnet having a pole piece extending toward the free end of the vibrating reed, the face of said pole piece being uncovered by said molded base.

3. In a vibrating device in combination, a frame having side members and a cross member connecting the ends of said side members, a vibratory reed mounted at the end of said frame opposite said crce's member and having its free end projecting toward said cross member, a molded insulating base molded about said cross member and having imbedded therein and supported thereby in a predetermined spaced relation a pair of resilient relative-y stationary supporting arms disposed on opposite sides of said vibrating reed, and an electromagnet likewise imbedded in and supported by said insulating base having a pole piece extending towa *d the free end of said reed, said pole piece being uncovered by said molded base.

JOSE a was.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

